Hi.... I have owned a 350sd for many years... but I did not use it for about six weeks. It started first time as usual.. but as soon as I put my foot on the brake pedal to put the car in gear the alarm went off... after turning off the alarm in the door lock I tried again..same problem.. but on the third attemp I managed to pull away..althoughI noticed that everytime I braked the horn would beep once.. After parking the car, on re-start the same thing happened.. this time I disconnected the battery to re-set the computer.. after two tries I was able to pull away without the alarm sounding.. but after driving for about a mile.. the alarm started as I was driving.. once again I reset the computer.. but this did not work.. eventually I pulled a couple of fuses #11 & #17.. which alowed me to get home without the noise and the flashing headlights!!. Today when I started the car.. the alarm did not go off... but on a second start up it did! any suggestions.. Thanks Paul